1 // SPDX-License-Identifier: GPL-2.0-only
27 	prop = fdt_get_property(dt_fdt(), fdtnode, "ibm,dec-bits", &plen);  in cpu_dec_bits()
36 	/* Check all CPU nodes have the same value of dec-bits */  in cpu_dec_bits()
38 		assert(dec_bits == fdt32_to_cpu(*(uint32_t *)prop->data));  in cpu_dec_bits()
40 		dec_bits = fdt32_to_cpu(*(uint32_t *)prop->data);  in cpu_dec_bits()
93 	regs->msr &= ~MSR_EE;  in dec_handler()
108 		if (tb2 - tb1 < dec_max - dec)  in test_dec()
112 	report_kfail(!host_is_tcg, tb2 - tb1 >= dec_max - dec,  in test_dec()
120 	report(tb2 - tb1 >= dec_max - dec,  in test_dec()
133 	mdelay(100); /* Give the timer a chance to run */  in test_dec()
149 	mdelay(100); /* Give the timer a chance to run */  in test_dec()
154 	report(got_interrupt, "DEC deal with set to 0");  in test_dec()
157 	/* Test for level-triggered decrementer */  in test_dec()
158 	mtspr(SPR_DEC, -1ULL);  in test_dec()
163 	report(got_interrupt, "interrupt on decrementer write MSB");  in test_dec()
170 	mtspr(SPR_DEC, -1);  in test_dec()
172 	report(got_interrupt, "interrupt on decrementer write MSB with irqs on");  in test_dec()
181 		     "no interrupt after wrap to positive");  in test_dec()
206 	report(tb2 - tb1 >= dec_max - hdec, "hdecrementer remains within TB");  in test_hdec()
213 	report(tb2 - tb1 >= dec_max - hdec, "hdecrementer remains within TB after 1s");  in test_hdec()
224 	mdelay(100); /* Give the timer a chance to run */  in test_hdec()
241 	mtspr(SPR_HDEC, -1ULL);  in test_hdec()
246 	report(got_interrupt, "no interrupt on hdecrementer underflown write MSB");  in test_hdec()
250 	mdelay(100); /* Give the timer a chance to run */  in test_hdec()
257 	report(got_interrupt, "HDEC deal with set to 0");  in test_hdec()
264 	mtspr(SPR_HDEC, -1ULL);  in test_hdec()
266 	report(got_interrupt, "interrupt on hdecrementer write MSB with irqs on");  in test_hdec()
277 	report(got_interrupt, "got interrupt after wrap to positive");  in test_hdec()
280 	mtspr(SPR_HDEC, -1ULL);  in test_hdec()
288 	mtspr(SPR_HDEC, -1ULL);  in test_hdec()
291 	report(got_interrupt, "edge re-armed after wrap to positive");  in test_hdec()
318 		if (!strcmp(argv[i], "-w")) {  in main()
326 	dec_max = (1ULL << (dec_bits - 1)) - 1;  in main()
327 	dec_min = (1ULL << (dec_bits - 1));  in main()